…And the federal War on Marijuana is racist in its enforcement, ridiculous as a matter of science, outrageous in terms of personal liberty, and inimical to federalism. […]

So do nothing, Mr president, with respect to these states and their legitimate decisions. Set the DEA’s priorities so that this trivial, medically useful, pleasure is not in any way a priority for law enforcement. Let the states figure this out, as they are on marriage equality.